<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>添加</title>
</head>

<body>
    <form action="add.php" method="post">
        姓名: <input type="text" name="name"><br>
        性别: <input type="radio" name="sex" value="male">男
        <input type="radio" name="sex" value="female">女<br>
        班级: <input type="text" name="class"><br>
        <input type="submit">
    </form>
</body>

</html>